<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>简单url处理器映射</title>
</head>
<body>
  <!-- 获取request作用域内属性为boolean的值 -->
  <c:out value="${requestScope['boolean']}"></c:out>
</body>
</html>